Why “London” Wasn’t Specific Enough for This Architectural Outreach Project
Overview
To expand their presence among london architects, Castle Surveys Ltd needed a reliable way to connect directly with architecture firms across specific London boroughs. While the concept was straightforward, the execution was difficult. The project required an up-to-date, accurate list of over 5,000 practicing architects, categorized by borough, with verified business contact information.
Public platforms and generic directories often provide outdated office locations or misclassify consultants as architects. BizProspex was onboarded to curate a thoroughly reviewed dataset that would be ready for immediate outreach and the development of long-term commercial partnerships.
Client Overview
Castle Surveys Ltd is a UK-based surveying and property consulting firm. They work with developers, contractors, and design professionals on both residential and commercial projects. Their goal was to build relationships with London architects to facilitate:
- New development and joint design proposals.
- Vendor partnerships and B2B networking.
- Marketing of specialized surveying services.
To achieve this, the client required a dataset of over 5,000 architects including borough-level locations, public business emails, LinkedIn URLs, firm websites, and firm size classifications through expert lead generation from BizProspex.
Problem
The challenge was not finding architects; it was precision. Available directories and platforms suffered from several systemic issues:
- Outdated Locations: Architects often had old office addresses listed.
- Misclassification: Interior designers and general consultants were frequently labeled as “architects.”
- Borough Inaccuracy: Firms were often assigned to the wrong borough, making localized marketing impossible.
- Data Decay: Lists included inactive professionals or missing email addresses.
For Castle Surveys, borough-level accuracy was essential. Errors in location lead to non-targeted marketing, low response rates, and wasted commercial effort.
Research Strategy – BizProspex
-
- Step 1: Defining the Borough Structure BizProspex established a comprehensive geographic framework covering all major London boroughs, including Westminster, Camden, Islington, Hackney, Kensington & Chelsea, Southwark, Hammersmith & Fulham, and Tower Hamlets. This ensured consistent segmentation across Greater London.
-
- Step 2: Validating Professional Roles Every record was manually reviewed to ensure the individual was a currently practicing architectural professional. We filtered out interior designers, contractors, students, trainees, and non-practicing roles. Only active professionals associated with registered practices were included.
-
- Step 3: Validating Locations and Contacts We verified the primary office location and mapped the physical address to the correct borough. BizProspex confirmed the availability of business emails, website ownership, and profile consistency across professional platforms. Only records meeting our strict criteria for location and contact reliability made the final cut.
Results
The final delivered dataset contained over 5,000 clean, duplicate-free architect records segmented by borough. This high-quality data allowed for:
- Immediate Outreach: Campaigns could start in specific boroughs without further filtering.
- Precision Targeting: Dramatic reduction in location-based errors.
- Efficiency: Faster identification of potential partners and improved response rates.
- Scalability: A solid foundation for future growth initiatives across London.
Conclusion
- Location is Key: In urban B2B campaigns, inaccurate geographic data is the primary cause of failure.
- Role Verification: Validating professional credentials is just as vital as verifying an email address.
- Effective Segmentation: Borough-level data dictates the success of localized partnership efforts.
- Risk Reduction: Thoroughly reviewed datasets minimize commercial risk and prevent the waste of valuable resources.